diff options
| author | Eric Anholt <[email protected]> | 2010-07-01 10:37:11 -0700 |
|---|---|---|
| committer | Eric Anholt <[email protected]> | 2010-07-01 11:07:22 -0700 |
| commit | d925c9173009e9e5d48df30b30aaef22753183aa (patch) | |
| tree | e42ee590b44d75b69fb67ee7de8b42ce05ee1c11 /src/glsl/ir_constant_expression.cpp | |
| parent | 5e4dd061d17563828bcce5525400a0ce363aa15d (diff) | |
glsl2: Add ir_unop_fract as an expression type.
Most backends will prefer seeing this to seeing (a - floor(a)), so
represent it explicitly.
Diffstat (limited to 'src/glsl/ir_constant_expression.cpp')
| -rw-r--r-- | src/glsl/ir_constant_expression.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/glsl/ir_constant_expression.cpp b/src/glsl/ir_constant_expression.cpp index c6348ac4347..548217cddd9 100644 --- a/src/glsl/ir_constant_expression.cpp +++ b/src/glsl/ir_constant_expression.cpp @@ -187,6 +187,24 @@ ir_constant_visitor::visit(ir_expression *ir) } break; + case ir_unop_fract: + for (c = 0; c < ir->operands[0]->type->components(); c++) { + switch (ir->type->base_type) { + case GLSL_TYPE_UINT: + data.u[c] = 0; + break; + case GLSL_TYPE_INT: + data.i[c] = 0; + break; + case GLSL_TYPE_FLOAT: + data.f[c] = op[0]->value.f[c] - floor(op[0]->value.f[c]); + break; + default: + assert(0); + } + } + break; + case ir_unop_neg: for (c = 0; c < ir->operands[0]->type->components(); c++) { switch (ir->type->base_type) { |